12in Scale Model Railroad Ruler

Item #84066

O, HO, N, mm, & 1/64 Scale Reference Rule
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Use this Model Railroad Reference ruler for accurate measuring for O, HO, N, mm & 1/64.

Ruler Features:

  • Sturdy Stainless Steel
  • Decimal Equivalents for Number Drills Chart
  • Reference Table Tap Drill Sizes for Small Screws
  • Formula for 75% Depth of Thread


Produced by: Excel

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